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Navrátil M, Císařová I, Štěpnička P. Synthesis and coordination of hybrid phosphinoferrocenes with extended donor pendants. Dalton Trans 2022; 51:14618-14629. [PMID: 36083192 DOI: 10.1039/d2dt02514k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Combining a phosphinoferrocene fragment with extended multidonor moieties affords novel, flexible multidonor pro-ligands. This contribution describes the synthesis of two structurally similar functional phosphines, Ph2PfcNHC(O)CH2PPh2 (1) and Ph2PfcNHCH2CH2PPh2 (2, fc = ferrocene-1,1'-diyl), and their coordination behaviour towards Pd(II). The former amidophosphine reacts with [PdCl2(MeCN)2] to produce the chelate complex [PdCl2(1-κ2P,P')] as a mixture of cis and trans isomers, which convert into bis-chelate [PdCl2(Ph2PfcNC(O)CH2PPh2-κ3P,P',N)] upon reacting with a strong base (KOt-Bu). In contrast, the more flexible and more basic phosphinoamine 2 directly forms the cationic bis-chelate complex [PdCl(2-κ3P,P',N)]Cl via spontaneous self-ionisation. Subsequent halogen abstraction with Ag[SbF6] results either in counter ion exchange to give [PdCl(2-κ3P,P',N)][SbF6] or in the formation of a structurally unique complex [PdCl(2-κ4Fe,P,P',N)][SbF6]2 with an Fe → Pd dative interaction, depending on the amount of silver(I) salt used (1 or 2 equiv.).
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Affiliation(s)
- Michal Navrátil
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
| | - Petr Štěpnička
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
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Bárta O, Císařová I, Mieczyńska E, Trzeciak AM, Štěpnička P. Synthesis and Catalytic Evaluation of Phosphanylferrocene Ligands with Cationic Guanidinium Pendants and Varied Phosphane Substituents. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201901057] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ondřej Bárta
- Department of Inorganic Chemistry Faculty of Science Charles University Hlavova 2030 128 40 Prague Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry Faculty of Science Charles University Hlavova 2030 128 40 Prague Czech Republic
| | - Ewa Mieczyńska
- Department of Inorganic Chemistry Faculty of Chemistry University of Wrocław ul. F. Joliot‐Curie 14 50‐383 Wrocław Poland
| | - Anna M. Trzeciak
- Department of Inorganic Chemistry Faculty of Chemistry University of Wrocław ul. F. Joliot‐Curie 14 50‐383 Wrocław Poland
| | - Petr Štěpnička
- Department of Inorganic Chemistry Faculty of Science Charles University Hlavova 2030 128 40 Prague Czech Republic
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Horký F, Škoch K, Císařová I, Štěpnička P. Versatile coordination and C-H activation of a multi-donor phosphinoferrocene carboxamide ligand in Pd(ii) complexes. Dalton Trans 2019; 48:16412-16425. [PMID: 31642824 DOI: 10.1039/c9dt03646f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A multi-donor phosphinoferrocene carboxamide, FcCONHCH2CH2PPh2 (1, Fc = ferrocenyl), was prepared, converted into the corresponding phosphine oxide 1O and phosphine selenide 1Se and, mainly, studied as a ligand in Pd(ii) complexes. In its native form, amide 1 preferentially coordinated soft Pd(ii) as a simple phosphine, giving rise to mixtures of cis and trans-[PdX2(1-κP)2] (2; X = Cl (a), Br (b), and I (c)), wherein the isomer ratios depended on the auxiliary halide ligand or, alternatively, to the complex [(LNC)PdCl(1-κP)] (6, LNC = 2-[(dimethylamino)methyl-κN]phenyl-κC1). This coordination mode was nevertheless easily changed when creating a vacant coordination site at the palladium. Thus, treatment of 2a with NH4[PF6] in the presence of free 1 produced [PdCl(1-κP)3][PF6] (3), while complete halogen removal with a Ag(i) salt led to cationic complexes cis-[Pd(1-κ2O,P)2]X2 (4, X = CF3SO3 (a), ClO4 (b), BF4 (c)) or [(LNC)Pd(1-κ2O,P)]X (7a and 7b), containing seven-membered O,P-chelate rings. In contrast, amide nitrogen deprotonation with KOt-Bu followed by spontaneous intramolecular halogen substitution resulted in the transformation of 6 into the chelate complex [(LNC)Pd{(1- H)-κ2N,P}] (8) featuring a five-membered N,P-chelate ring, and in the conversion of 2a and 2b into the product of C-H bond activation [Pd{Fe(η5-C5H3CONCH2CH2PPh2-κ3C,N,P)(η5-C5H5)}(1-κP)] (5), with doubly chelating deprotonated 1. Importantly, complexes 2-4-5 and 6-7-8 were mutually interconverted in triads (by protonation/deprotonation and by halide addition/abstraction), which highlights the flexible coordination and chemical stability of ligand 1. The crystal structures of 1O·½H2O, trans-2a·MeCN, trans-2b·3C2H4Cl2, trans-2c·2.5C2H4Cl2, 4a·CH2Cl2, 5·3CHCl3·Et2O, and 8 were determined by single-crystal X-ray diffraction analysis, and the representative compounds were studied by cyclic voltammetry.
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Affiliation(s)
- Filip Horký
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic.
| | - Karel Škoch
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic.
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic.
| | - Petr Štěpnička
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic.
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Korenaga T, Kowata R, Kotaki T, Shibasaki Y, Oishi Y, Shimada K. Moderately Flexible Trans-Chelating Diphosphine Ligands Consisting of a Triazine Unit Showing High Ligand Acceleration Effect for Heck Reaction. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20170392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Toshinobu Korenaga
- Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551
| | - Ryo Kowata
- Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551
| | - Tomohiro Kotaki
- Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551
| | - Yuji Shibasaki
- Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551
| | - Yoshiyuki Oishi
- Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551
| | - Kazuaki Shimada
- Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551
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Škoch K, Císařová I, Schulz J, Siemeling U, Štěpnička P. Synthesis and characterization of 1'-(diphenylphosphino)-1-isocyanoferrocene, an organometallic ligand combining two different soft donor moieties, and its Group 11 metal complexes. Dalton Trans 2018; 46:10339-10354. [PMID: 28737814 DOI: 10.1039/c7dt02336g] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The development of a practical synthesis of 1'-(diphenylphosphino)-1-aminoferrocene (2) and its P-borane adduct (2B) allowed the facile preparation of 1'-(diphenylphosphino)-1-isocyanoferrocene (1). This compound combining two specific soft-donor moieties was studied as a ligand for univalent Group 11 metal ions. The reactions of 1 with AgCl at 1 : 1 and 2 : 1 molar ratios only led to the coordination polymer [Ag2(μ-Cl)2(μ(P,C)-1)]n (6), while those with Ag[SbF6] provided the dimer [Ag2(Me2CO-κO)2(μ(P,C)-1)2][SbF6]2 and the quadruply-bridged disilver complex [Ag2(μ(P,C)-1)4][SbF6]2 (8), respectively. Addition of 1 to [AuCl(tht)] (tht = tetrahydrothiophene) afforded the mono- and the digold complex, [AuCl(1-κP)] (9) and [(μ(P,C)-1)(AuCl)2] (10), depending on the reaction stoichiometry. Finally, the reaction of 1 with [Au(tht)2][SbF6] or halogenide removal from 9 with AgNTf2 led to cationic dimers [Au2(μ(P,C)-1)2]X2 (11, X = SbF6 (a) or NTf2 (b)). Catalytic tests in the Au-mediated isomerization of (Z)-3-methylpent-2-en-4-yn-1-ol to 2,3-dimethylfuran revealed that 11a and 11b are substantially less catalytically active than their analogues containing 1'-(diphenylphosphino)-1-cyanoferrocene as the ligand, most likely due to a stronger coordination of the isonitrile moiety, which prevents dissociation of the dimeric complexes into catalytically active monomeric species.
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Affiliation(s)
- Karel Škoch
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic.
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic.
| | - Jiří Schulz
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic.
| | - Ulrich Siemeling
- Institute of Chemistry, University of Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany
| | - Petr Štěpnička
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic.
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Dwadnia N, Roger J, Pirio N, Cattey H, Hierso JC. Input of P, N-(phosphanyl, amino)-ferrocene hybrid derivatives in late transition metals catalysis. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.07.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Bárta O, Císařová I, Štěpnička P. Phosphinomethylation of [1′-(diphenylphosphino)ferrocenyl]-methylamines as a route to unsymmetric ferrocene diphosphine ligands. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2017.11.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Schulz J, Vosáhlo P, Uhlík F, Císařová I, Štěpnička P. Probing the Influence of Phosphine Substituents on the Donor and Catalytic Properties of Phosphinoferrocene Carboxamides: A Combined Experimental and Theoretical Study. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00181] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Jiří Schulz
- Department
of Inorganic Chemistry and ‡Department of Physical and Macromolecular
Chemistry, Faculty of Science, Charles University; Hlavova 2030, 128 40 Prague, Czech Republic
| | - Petr Vosáhlo
- Department
of Inorganic Chemistry and ‡Department of Physical and Macromolecular
Chemistry, Faculty of Science, Charles University; Hlavova 2030, 128 40 Prague, Czech Republic
| | - Filip Uhlík
- Department
of Inorganic Chemistry and ‡Department of Physical and Macromolecular
Chemistry, Faculty of Science, Charles University; Hlavova 2030, 128 40 Prague, Czech Republic
| | - Ivana Císařová
- Department
of Inorganic Chemistry and ‡Department of Physical and Macromolecular
Chemistry, Faculty of Science, Charles University; Hlavova 2030, 128 40 Prague, Czech Republic
| | - Petr Štěpnička
- Department
of Inorganic Chemistry and ‡Department of Physical and Macromolecular
Chemistry, Faculty of Science, Charles University; Hlavova 2030, 128 40 Prague, Czech Republic
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Shin HJ, Moon S, Kim JC. Structure and Properties of Macrocyclic Nickel(II) Coordination Polymer Bearing 1,1'-Ferrocenedicarboxylate Bridging Ligand. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2016. [DOI: 10.5012/jkcs.2016.60.6.467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Bárta O, Císařová I, Štěpnička P. Synthesis, Palladium(II) Complexes, and Catalytic Use of a Phosphanylferrocene Ligand Bearing a Guanidinium Pendant. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201601262] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ondřej Bárta
- Department of Inorganic Chemistry; Faculty of Science; Charles University; Hlavova 2030 12840 Prague Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry; Faculty of Science; Charles University; Hlavova 2030 12840 Prague Czech Republic
| | - Petr Štěpnička
- Department of Inorganic Chemistry; Faculty of Science; Charles University; Hlavova 2030 12840 Prague Czech Republic
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Synthesis and structural characterization of ferrocene phosphines modified with polar pendants and their palladium(II) complexes. Part I: N -aminocarbonyl and N -acyl phosphinoferrocene carboxamides. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.02.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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13
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Fernandes TA, Solařová H, Císařová I, Uhlík F, Štícha M, Štěpnička P. Synthesis of phosphinoferrocene amides and thioamides from carbamoyl chlorides and the structural chemistry of Group 11 metal complexes with these mixed-donor ligands. Dalton Trans 2015; 44:3092-108. [PMID: 25572958 DOI: 10.1039/c4dt03279a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of in situ generated 1'-(diphenylphosphino)-1-lithioferrocene with carbamoyl chlorides, ClC(E)NMe2, affords the corresponding (thio)amides, Ph2PfcC(E)NMe2 (E = O (), S (); fc = ferrocene-1,1'-diyl). These compounds as well as their analogues, Ph2PfcC(O)NHMe () and Ph2PfcC(O)NH2 (), prepared from 1'-(diphenylphosphino)ferrocene-1-carboxylic acid (Hdpf) were studied as ligands for the Group 11 metal ions. In the reactions with [Cu(MeCN)4][BF4], the amides give rise to bis-chelate complexes of the type [Cu(L-κ(2)O,P)2][BF4]. Similar products, [Ag(L-κ(2)O,P)2]ClO4, are obtained from silver(i) perchlorate and , or . In contrast, the reaction of AgClO4 with produces a unique molecular dimer [Ag()(ClO4-κO)]2, where the metal centres are bridged by the sulfur atoms of the P,S-chelating thioamides. The reactions of with [AuCl(tht)] (tht = tetrahydrothiophene) afford the expected gold(i)-phosphine complexes, [AuCl(L-κP)], containing uncoordinated (thio)amide moieties. Hemilabile coordination of the phosphinoamide ligands in complexes with the soft Group 11 metal ions is established by the crystal structure of a solvento complex, [Cu(-κ(2)O,P)(-κP)(CHCl3-κCl)][BF4], which was isolated serendipitously during an attempted crystallisation of [Cu(-κ(2)O,P)2][BF4]. All of the compounds are characterised by spectroscopic methods, and the structures of several representatives of both the free phosphinoamides and their complexes are determined by X-ray diffraction analysis and further studied by DFT calculations and cyclic voltammetry.
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Affiliation(s)
- Tiago A Fernandes
- Department of Inorganic Chemistry, Faculty of Science, Charles University in Prague, Hlavova 2030, 12840 Prague 2, Czech Republic.
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Schaarschmidt D, Grumbt M, Hildebrandt A, Lang H. A Planar-Chiral Phosphino(alkenyl)ferrocene for Suzuki-Miyaura C-C Coupling Reactions. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402861] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Solařová H, Císařová I, Štěpnička P. Synthesis, Structural Characterization, and Catalytic Evaluation of Phosphinoferrocene Ligands Bearing Extended Urea-Amide Substituents. Organometallics 2014. [DOI: 10.1021/om5006758] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Hana Solařová
- Department of Inorganic Chemistry,
Faculty of Science, Charles University in Prague; Hlavova 2030, 128 40 Prague, Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry,
Faculty of Science, Charles University in Prague; Hlavova 2030, 128 40 Prague, Czech Republic
| | - Petr Štěpnička
- Department of Inorganic Chemistry,
Faculty of Science, Charles University in Prague; Hlavova 2030, 128 40 Prague, Czech Republic
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Wang L, Kiemle DJ, Boyle CJ, Connors EL, Gitsov I. “Click” Synthesis of Intrinsically Hydrophilic Dendrons and Dendrimers Containing Metal Binding Moieties at Each Branching Unit. Macromolecules 2014. [DOI: 10.1021/ma500126f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Lili Wang
- Department of Chemistry and ‡The Michael M. Szwarc Polymer Research Institute, State University of New York-ESF, Syracuse, New York 13210, United States
| | - David J. Kiemle
- Department of Chemistry and ‡The Michael M. Szwarc Polymer Research Institute, State University of New York-ESF, Syracuse, New York 13210, United States
| | - Connor J. Boyle
- Department of Chemistry and ‡The Michael M. Szwarc Polymer Research Institute, State University of New York-ESF, Syracuse, New York 13210, United States
| | - Eoghan L. Connors
- Department of Chemistry and ‡The Michael M. Szwarc Polymer Research Institute, State University of New York-ESF, Syracuse, New York 13210, United States
| | - Ivan Gitsov
- Department of Chemistry and ‡The Michael M. Szwarc Polymer Research Institute, State University of New York-ESF, Syracuse, New York 13210, United States
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Tauchman J, Císařová I, Štěpnička P. Synthesis and structural characterisation of Pd(ii) and Pt(ii) complexes with a flexible, ferrocene-based P,S-donor amidophosphine ligand. Dalton Trans 2014; 43:1599-608. [DOI: 10.1039/c3dt52760c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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